HESI A2 Vocabulary: 150 Must-Know Terms

TUTORIFFIC Word List

🔤 Essential Prefixes & Suffixes

PrefixMeaning
hyper-excessive, above
hypo-below, under
anti-against
pre-before
post-after
sub-under, below
inter-between
intra-within
bi-two
poly-many
RootMeaning
cardi/oheart
derm/askin
gastr/ostomach
hepat/oliver
nephr/okidney
neur/onerve
oste/obone
pulmon/olung
hem/oblood
path/odisease
SuffixMeaning
-itisinflammation
-ectomysurgical removal
-ologystudy of
-emiablood condition
-osiscondition/disease
-algiapain
-pathydisease
-scopyviewing
-plastysurgical repair
-gramrecord/image

📖 High-Frequency HESI Vocabulary (A-M)

WordMeaning
AbateTo decrease, reduce
AbstainTo refrain from
AcuteSevere, sudden onset
AdverseHarmful, unfavorable
AmbiguousUnclear, vague
BenignNot harmful, mild
BilateralBoth sides
ChronicLong-lasting
CompensateTo make up for
ComplianceFollowing instructions
ConciseBrief, to the point
ConcurrentAt the same time
CongenitalPresent at birth
ConstrainTo limit, restrict
ContingentDependent on
ContraindicationReason NOT to use
DeficiencyLack, shortage
WordMeaning
DeteriorateTo worsen
DilateTo widen, expand
DistalFar from center
ElevateTo raise up
EtiologyCause of disease
ExacerbateTo make worse
ExplicitClear, direct
FatigueTiredness, weariness
FebrileHaving fever
FlaccidLimp, soft
ImpairedDamaged, weakened
IncidenceRate of occurrence
InflamedSwollen, red, hot
InsidiousGradual, subtle
IntactUnbroken, whole
LatentHidden, dormant
LethargicSluggish, drowsy
WordMeaning
MalaiseGeneral discomfort
MalignantCancerous, harmful
ManifestTo show, display
MitigateTo lessen severity
MorbidityState of disease
MortalityDeath rate
NoxiousHarmful, toxic
OccludeTo block, close
OminousThreatening
PalliativeRelieves symptoms
PatentOpen, unblocked
PotentPowerful, strong
PrecautionSafety measure
PrognosisDisease outlook
ProximalNear the center
RationaleReason, logic
RecurTo happen again

📖 High-Frequency HESI Vocabulary (N-Z)

WordMeaning
ResidualRemaining
RestrictTo limit
RetainTo keep, hold back
SecreteTo produce/release
SedentaryInactive, sitting
SepsisBody infection
SequelaAftereffect
SomaticRelated to body
SublingualUnder the tongue
SuperficialOn the surface
SupplementTo add to
SusceptibleEasily affected
SymmetryEqual on both sides
SymptomSign of illness
TherapeuticHealing, curative
ToxicPoisonous
TransientTemporary
WordMeaning
TraumaInjury, wound
TriagePriority sorting
UnilateralOne side only
VerbalSpoken, oral
VitalEssential to life
VoidTo empty, urinate
VolumeAmount of space
WaneTo decrease
LumenInside of a tube
ProlapseFalling/slipping
DistalFarthest from
PalpateTo feel/examine
AnteriorFront of body
PosteriorBack of body
SuperiorAbove
InferiorBelow
MedialToward middle
WordMeaning
LateralAway from middle
ProneFace down
SupineFace up
AbductMove away from
AdductMove toward
FlexionBending a joint
ExtensionStraightening
DorsalBack side
VentralFront/belly side
EdemaSwelling (fluid)
EmesisVomiting
DyspneaDifficulty breathing
CyanosisBlue skin (low O₂)
AtrophyWasting/shrinking
HypertrophyEnlargement
NecrosisTissue death
StenosisNarrowing
150 terms × mastering roots = 500+ words decoded. Study 15 per day for 10 days.